Multiple drilling-machine.



PATENTED AUG. 2, 1904. A. G. VAUOLAIN.

MULTIPLE DRILLING MACHINE.

APPLICATION FILED AUG.10. 1903.

B SHEETS-SHEET 1.

NO MODEL.

llllllllllllllllillllIlllll No, 766,747. PATBNTED AUG. 2, 1904. A. O.VAUOLAIN.

MULTIPLE DRILLING MACHINE.

APPLICATION FILED AUG. 10, 1903.

N0 MODEL. 8 snnms-s11sm z,

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No. 766,747. PATENTED AUG. 2, 1904. A. G. VAUULAIN.

MULTIPLE DRILLING MACHINE.

APPLIGATION FILED AUG.10, 1903. no MODEL. 8 SHEETS-SHEET a.

No. 766,747. PATBNTED AUG. 2, 1904 A. 0. VAUOLAIN.

MULTIPLE DRILLING MACHINE.

APPLICATION FILED AUG. 10. 1903.

N0 MODEL. 8 SHEETS-SHEET 4..

PATENTED AUG. 2,1904.

A. G. VAUGLAIN.

MULTIPLE DRILLING MACHINE.

APPLIUATION FILED AUG. 10 1903.

8 SHEETS-SHEET 5.

NO MODEL.

No. 766,747. PATENTED AUG. 2, 1904.

' A. c. VAUGLAIN.

MULTIPLE DRILLING MACHINE.

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PATENTED AUG. 2, 1904.

A. G. VAUGLAIN.

MULTIPLE DRILLING MACHINE.

APPLICATION FILED AUG. 10. 1903.

8 SHEETS-SHEET 7.

N0 MODEL.

PATENTED AUG. 2, 1904.

A. G. VAUGLAIN.

' MULTIPLE DRILLING MACHINE.

APPLICATION FILED AUG. 10, 1903.

8 SHEETSSHEBT 8.

NO MODEL.

UNITED STATES Patented August 2, 1904.

PATENT OFFICE.

MULTIPLE DRILLING-MACHINE.

SPECIFICATION forming part of Letters Patent N0. 766,747, dated August2, 1904.

Application filed August 10, 1903. Serial No. 168,938. (No model.)

1'0 (LU whom it may concern;

Be it known that I, ANDREW G. VAUCLAIN, a citizen of the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Multiple Drilling-Machines, of which the following is aspecification.

The main object of my invention is to so construct a multipledrilling-machine that the drill-spindles can be adjusted toward and froma center for drilling, so that a series of holes properly spaced can bedrilled.

A further object of the invention is to provide means for feeding thework to the drill and to provide a templet which is used when the drillsare being adjusted.

My invention is especially applicable to drilling the holes insteam-cylinder heads or cylinders where accuracy is desired and where itis an object to do the work as quickly as possible; but it will beunderstood that it can be used for drilling any object where a num-,

ber of holes are to be drilled and properly spaced.

In the accompanying drawings, Figure 1 is an end view of my improvedmultiple drilling-machine. Fig. 2 is a side view, the upper portionbeing cut away. Fig. 3 is a plan view of the lower portion of thedrilling-machine. Fig. #1 is a section on the linea l, Fig. 3 Fig. 5 isa sectional view of the upper portion of the drill. Fig. 6 is asectional plan view on the line 6 6, Fig. 5. Fig. 7 is a section on theline 7 7, Fig. 6. Fig. 8 is a section on the line 8 8, Fig. 5. Fig. 9 isa plan view of the table. Figs. 10 and 11 are enlarged views of thedrill-spindle. Figs. 12 and 13 are views of the templet, and Fig. let isa View of a detail of Fig. 10.

A is the base of the machine,having standards A, carrying the frame B,which supports the drill-spindles and their bearings. Secured to theupper end of this frame B is a cap-plate B, and above this cap-plate isa bearing B The cap-plate is secured to the frame by bolts 6, and thebearing is secured to the cap-plate by bolts 1). Stepped in the capplateand adapted to the bearing B is a ver-, tical shaft (J, having a beveledgear-wheel C keyed to it. This bevel-gear meshes with a bevel-pinion con an intermediate shaft 0, having a gear-wheel c, which meshes with apinion c on the arinature-shaft (Z of a motor D. This motor is of any ofthe ordinary types and is mounted on a bracket B, projecting from andsecured to the frame B.

(J is a two-faced gear-wheel keyed to the shaft C.

c c are two sets of spindles mounted in suitable bearings in thecap-plate B. Each of the outer row of spindles 1: has a pinion a meshingwith the teeth on the larger diameter of the wheel C while the pinion con each spindle c meshes with the teeth on the smaller diameter of thewheel. The wheels are so proportioned that both the inner and outer rowof spindles will turn in unison. Coupled by a gimbal-joint a to eachspindle is a telescopic rod F, which is attached at its lower end by agimbal-joint f to the drill-spindle F, which is provided with a chuck f,by which the tool can be readily held to the drill-spindle.

As shown in Fig. 8, there is an outer circle of spindles c and an innercircle of spindles a, and, as shown in Fig. 6, each drill-spindle F hasits bearings in a slide G and the slides G are mounted in slideways b inthe frame B.

It will be noticed that the slideways b are enlarged at each end. Theobject of this construction is not only to allow the slides to be movedtoward and from the center of the machine, but to allow them to beadjusted laterally as well, so that the drill-spindles can be adjustedto drill a series of holes in a circle spaced any distance apart oradjusted so as to accommodate any irregular line, and the drills can bespaced to conform to any irregular spacing. In the present instancethere are twenty-four drill-spindles, twelve coupled to the twelvespindles on the outer circle and twelve coupled to the twelve spindles aon the inner circle. The drill-spindles coupled to the spindles calternate with those coupled to the spindles c, and the gearing is soproportioned that all the drill-spindles turn in unison.

On certain diameters the whole twenty-four spindles can be used to drilltwenty-four holes; but as the circle decreases in diameter there turnedby a wrench or spanner.

will be a less number of holes, and consequently a number of thedrill-spindles will be thrown out of action.

In drilling cylinder-heads and like castings it is often desirable tospace a majority of the holes equidistant apart and some of the holescloser together or farther apart, and in some instances an odd number ofholes is to be drilled. Therefore the slides carrying the drillspindlesmust be capable of lateral adjustment as well as adjustment toward andfrom the center in order to make the machine applicable to differentclasses of work.

1 preferably use a series of templets (shown in Fig. 12) for standardwork, so that the drillspindles can be readily adjusted. This templet isa plate in the present instance in circular form, having a notchedperiphery, the inner edges of the notches being in line with the holesto be drilled, so that'when the templet is placed in position a certainnumber of the slides can be adjusted so that their drills will enter thenotches of the templet, and when in this position they are secured inthe adjusted position by the top set-screw g and the bottom set-bolt 9.Each slide Ghas preferably a longitudinal slot g in its upper edge, inwhich rests a block g carried by the setscrew 9, and in the under sideof each slide is an undercut slot g for the head of the setbolt 9. Theset-screw g acts as the pivot when the slide is moved laterally, thesaid bolt g being mounted-in a slot 5 in the frame B, so as toaccommodate itself to the lateral movement of the slide.

- Referring now to Figs. 10 and 11, I have shown the detailedconstruction of one of the spindles and the connecting-rod. Thegimbal-joints e and fare of the ordinary construction, a centralswivel-block being used, to which the two sections are coupled. Securedto the upper gimbal-joint is a casting e forming a reservoir forlubricant. The coupling-rod F is made in two sections f f the section fsliding within the section f the section f having a spline in which fitsa key f*, so that the two sections of the shaft will turn together; butone will be allowed to slide in the other, so as to compensate for theadjustment of the'slide G, carrying the drillspindle. The drill-spindleis made as shown in Fig. 11, having a chuck f at its lower end forholding the drill 2'. The chuck may be made in any suitable manner. Inthe present instance it consists of a split jaw t, having a taperedouter face and a tapered sleeve i encircling the jaw. This sleeve has anexternal thread meshing with the thread on the projecting portions 2' ofthe chuck, and the end of the sleeve is so shaped that it can be A block'21, carried by the. jaw 71, enters the groove in the drill 2 to preventthe spindle turning without turning the drill. The spindle Fis madehollow, as shown, so that the drill can pass describe.

up into the spindle and can be projected according to the depth of holerequired.

It will be seen by the above-described construction that the frame forsupporting the drill-spindles is open at the center and thedrill-spindles are adjusted from the periphery toward the center, sothat work having parts projecting above the flange or other part to bedrilled can be readily set in the machine.

I will now describe the table and the mechanism for feeding the tabletoward and from the drills. While it will be understood that myinvention can be used in connection with any suitable table and with anymeans for feeding the table to the drills, I prefer to use theconstruction which I will now proceed to On the base A are two rails aa, which continue and form the sides of the extension A of the base.H'is a carriage having flanged wheels h h, which are mounted on therails a a, and the carriage can bemoved to a position either directlyunder the center of the drilling-machine or to one side thereof, so thatthe work can be transferred to the carriage or table by a crane and then'moved by the carriage in position under the drills. While the carriagecan be pushed into and out of position, I prefer to use mechanismoperated by a crank for moving the table into and out of position. On abracket A secured to the extension of the base, is avertical shaft J,having a handle j at one end and a bevelpinion 7' at'the opposite end,gearing with a bevel-wheel j on the shaft j, to which is secured a ropedrum i Fastened to a bracket 72/ on the carriage is a rope H, whichextends from the carriage and is coiled around the rope-drum and thenpasses to the opposite end of the machine and around a wheel J and isreturned and secured to the bracket h on the carriage. By turning thehandled shaft J the carriage H can be traversed on its track into or outof position. Instead of operating the drum by hand it may be opoperatedby power.

The table of the carriage H has projecting brackets H at each side.These brackets are V-shaped, as shown in Fig. 9, and aline with theV-shaped grooves in the standards A, so that when the table is raisedthese brackets enter the grooves and keep the table in alinement untilthe table is again lowered, when it is free to be moved laterally. 1

In order to confine the work to the table, I

screws are shaped to receive a handle or wheel on which the screw can beturned.

In order to move the table toward and from the drills and to feed thetable forward when the drills are in operation, I provide the followingmeans: On the under side of the table of the carriage H is a projectionH having an annular V-shaped groove in the present instance, in whichfits the flange of a disk L, secured to the upper end of a screw-spindleL. The threads of this spindle mesh with the threads in the elongatedhub Z of the worm -wheel L which has its bearings in the portions A ofthe base A and the cap Afl so that when the worm-wheel L is turned inone direction the disk L is raised, and when it comes in contact withthe portion H of the carriage H it lifts it bodily off the rails a andfeeds it toward the drills. By reversing the movement of the worm-wheelthe screw is lowered and the wheels of the table come in contact withthe rails, and as the screw is still further lowered the disk freesitself entirely from the carriage, so that the carriage can be movedlaterally from under the drills. Meshing with the worm-wheel is a wormM, Fig. 3, which is mounted on a shaft M,adapted to bearings m in thebase of the machine. Splined to the shaft is a clutch-sleeve m havingteeth ateach edge arranged to engage the clutch-disks '11- and n, whichare loose on the shaft. The clutch-disk n is secured to a tubular shaftN, adapted to bearings m and has a gear-wheel 22. which meshes with apinion 72 on the armature-shaft N of an electric motor N. Theclutch-disk a is secured to a bevel-wheel P, which meshes with a pinionp on a shaft P, having bearings in the base of the machine, and on theopposite end of this shaft P is a bevel-wheelp, which meshes with apinion p on a horizontal shaft 1), which has at its opposite end abevel-wheel p, meshing with a pinion 1) on a vertical shaft P Thisvertical shaft extends to the upper portion of the machine and has atits upper end a gearwheel 1), which meshes with a pinion g on anextension of one of the spindles 6, so that while the clutch-disk or isdriven from the motor N the clutch-disk n is driven from the motor Dthat drives the spindles. The motor Dis a slow-speed motor, while themotor N is a quick-speed motor. By this arrangement the carriage H andits table can be quickly fed from the rails to the work by throwing theclutch-sleeve m into engagement with the clutch-disk n of the motor Nbut when the table is to be fed while the drills are in action then theclutch-sleeve m is thrown into gear with the clutch-disk n, and theslow-speed motor is then in gear, and the table can be slowly fed duringthe drilling operation; but when the drilling is completed the clutchescan be reversed and the quick speed thrown into gear, so as to quicklyreturn the carriage to the rails.

In order to operate the clutch-sleeve m, an arm s is mounted on a shaftS, the arm being forked and engaging pins on the collar a on the sleevem, and on the outer end of the shaft is a hand-lever S, having a latch 8whichis arranged to engage with the notch in a segment .9 so that theclutch can be adjusted and locked in its adjusted position. On the shaftS is a weighted arm x", which tends to shift the clutch-sleeve m. out ofgear with the slowspeed-moto r disk a. On the shaft is anotched wheel awith which engages one arm of a lever T, the other arm of the leverbeing connected to a rod 2, which in turn is coupled to an arm a on theshaft T, and on this shaft is a weighted arm t". On the shaft T is astrikerarm t, with which a collar on a bar V, secured to the disk L,engages when the table is at its extreme height, so as to throw out theslowspeed motor and stop the machine. On the shaft w of the controller\V is a weighted arm ll, which when released will always bring thecontroller to a central position, throwing out the high-speed motor withwhich the controller is connected. On the controllershaft '11! is anotched disk Q02, with which two arms 10 and we engage. These arms areacted upon by collars 1 ;I/ on a bar Y, carried by the disk L. One ofthese arms is acted upon when the table is in its lowest position andthe other when it is in its raised position in advance of thedrilling-point, so that the operation of the machine is as follows: Thedrillspindles are rotated continuously by the slowspeed motor, which isgoverned by an independent controller from the one shown. The work isplaced on the table, and the carriage is moved into position under thedrills. The high-speed controller is then moved into operative positionand the clutch-sleeve is shifted into engagement with the clutchface ofthe high-speed motor. The table will immediately raise to a positiondirectly under the drills. \Vhen at this point the weight of thecontroller will be released, causing its arm to fall back to normalposition and cutting out the high-speed motor. The operator then shiftsthe clutch-sleeve from the face n to the face n, which is geared to theslow-speed motor. Then the table will be fed upward and the holes willbe drilled when the extreme height is reached. The lever T is acted uponto free the clutch-sleeve, and its weight 8 will move the sleeve fromthe face a, stopping the feed. The operator then throws the controller\V, so as to reverse the high speed, and moves the clutch-sleeve inengagement with the face n, geared to the high-speed motor, and thecurrent being reversed the table is returned to its original positionand then thrown out of gear, and the table can then be moved laterallyon the rails and the work removed and other work placed in its stead.

1 claim as my invention- 1. The combination in a drilling-machine,

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of a fixed frame having an open center and having radially arrangedslideways at the base, said slideways being enlarged at each end, slidespivotally mounted in each slideway, spindles carried by the slides,means for driving said spindles, and means for holding the slides in theadjusted position so that they can be shifted toward and from the centerand out of a radial line, substantially as described.

2. The combination in a drilling-machine, of a fixed frame having anopen center and having radially-arranged slideways,slides pivotallymounted in said slideways, drill-spindles carried by the slides, meansfor driving said spindles, said slideways being enlarged at each end,and two set-screws mounted in the walls of the slideways one engagingthe bottom of the slide and the other engaging the top, substantially asdescribed.

3. The combination in a drilling-machine, I

of a fixed frame with an open center and having radially-arrangedslideways at the base,

- said slideways being enlarged at each end,

slides mounted in said slideways, said slides having longitudinalgrooves in the upperand lower edges, two set-screws mounted in the wallsof the slideways, one set-screw acting as a pivot on which the slidescan swing laterally, the other set-screw passing through an oblong slotin the frame to allow for the lateral swing of the slides,drill-spindles carried by the slides, and means for driving saiddrill-spindles, substantially as described.

4. In a drilling-machine, a frame for supporting the drills, standardsfor supporting the said frame, vertical grooves in the standards, atable having projections in line with the said grooves, a track uponwhich the table is mounted so that it can be moved laterally from underthe frame, and means for raising the table, the projections thereonentering the grooves in the standards, substan tially as described.

5. In a drilling-machine, a frame for supporting the drills, standardsfor supporting the frame, rails mounted between the standards, a plungerdirectly under the center of the frame, a head carried by the plunger, atable mounted on the rails, said table having an annular .groove on theunder side, an annular projection on the head of the plunger arranged toenter the groove and hold the table in line with the frame, and guideson the frame to engage the table after it is raised from the rails,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ANDREW C. VAUCLAIN. Witnesses:

WVILL. A. BARR, JAMEs C. KRAYERI

